Cosmetics
For cosmetics, it is required to have strong UV shielding ability. It is best to protect against UVB damage to the human body and to protect against UVA. In essence, the ultraviolet shielding includes two aspects, one is the absorption of ultraviolet rays as described above, and the other is the reflection of ultraviolet rays. At present, the anti-ultraviolet agent developed from the viewpoint of ultraviolet reflection performance in the world has not been reported. In the sunscreen products, organic compounds have been frequently used as ultraviolet absorbers. However, in order to protect the skin from ultraviolet rays as much as possible, the amount of skin cancer and chemical allergy may increase, and the gas phase white carbon black is Inorganic component, easy to be distributed with other groups of cosmetics, non-toxic, odorless, does not have the above problems, and is white in itself, can be easily colored, especially expensive gas black silica has strong UV reflectivity and good stability. It does not decompose after UV irradiation, does not change color, and does not react chemically with other components in the formulation. These outstanding features of fumed silica have laid a good foundation for the upgrading of sunscreen cosmetics.

Antibacterial material
Using the large specific surface area of the gas phase silica, the surface multi-mesoporous structure, the superabsorbent ability and the singular physicochemical properties, functional ions such as silver ions are uniformly designed into the mesopores of the surface of the fumed silica and stabilized. Successfully developed high-efficiency, long-lasting, high-temperature resistant, broad-spectrum antibacterial nano antibacterial powder (particle size is only about 70 nanometers), which not only fills the domestic gap, but also the main technical indicators have reached or exceeded similar products in Japan. After testing, when the concentration of nano antibacterial powder in water is only 0.315%, the antibacterial ability of Gram-positive representative strains and Gram-negative representative strains can be clearly revealed, and the inhibition zone appears 2— 3mm, and with the increase of the concentration of nano antibacterial powder in water, the inhibition zone increased significantly. It has been determined that when the water contains Ag+ of 0.01 mg/1, it can completely kill E. coli in water and maintain a new flora for up to 90 days.

The nano antibacterial powder is applied to the enamel glaze to produce a drum washing machine with mildewproof and antibacterial functions, and the antibacterial rate is as high as 99% or more. It should be pointed out that the nano antibacterial powder is used in enamel glazes in harsh conditions. It must maintain strong antibacterial properties after burning in a highly alkaline liquid and high temperature (about 900 ° C). This is another antibacterial powder. Unpredictable. The nano antibacterial powder is added to the interior wall paint to produce an interior wall paint with long-lasting antibacterial and mildew resistance. The nano antibacterial powder is used in women's underwear detergent, wool, cashmere detergent, detergent, hand soap, and the antibacterial performance is very significant after being tested by the health and epidemic prevention department. It can be foreseen that with the enhancement of people's health awareness, nano antibacterial powder will gradually be accepted by the general public of relevant application enterprises, and it will emerge in the industries of bills, medical and health, chemical building materials, home appliances, functional fibers and plastic products.